Office Pro Plus 2010 for Office365(the special Office software that is provided by subscribing to Office 365 E3/E4)

The two are different MEDIA TYPES. (Sort of like the difference between MSDN vs TRIAL vs RETAIL vs VL) VL & O365 media types offer the same product mix of Word, Excel, etc., (although it seems to be missing Publisher in the default install) however here are some key technical differences between the two:

… appears in Add/Remove Programs as “Microsoft Office Professional Plus 2010”If “Office Professional Plus 2010 for Office 365” is installed on another system that already has ”Office Professional Plus 2010 Volume License Media” installed on it, TWO entries will appear in Add/Remove programs that both read, “Office Professional Plus 2010”. http://technet.microsoft.com/en-us/library/gg702620.aspx

… doesn’t use a traditional Volume License “Activation Key”.It won’t take MAK/KMS keys. It’s a special media type that installs Office 2010 along with something called the “Office Subscription Agent”. The user is simply required to enter their Office 365 credentials (username/pwd) and the Agent reaches out over the Internet to verify the user account. (i.e. that the user is still subscribed to Office 365) Upon doing so it activates the local copy of Office 2010 for ONE MONTH.

… will “connect to Office 365” monthly to validate that an active subscription for the user is still available. It’s a special version of Office that checks that the user still has an active subscription license once a month. If it can’t, Office 365’s version of OfficeProPlus2010 goes into “reduced functionality mode” and basically becomes a ‘viewer’ – i.e. no editing or creating new documents. http://technet.microsoft.com/en-us/library/gg982959.aspx

HOW DO YOU INVENTORY FOR OFFICE PROFESSIONAL PLUS 2010 for OFFICE 365? How does one figure out how many copies are deployed? How do you differentiate between the desktops that have Office Professional Plus 2010 Volume Licensing Media, and Office Professional Plus 2010 for Office 365?

Right now this is the only way I know of: Office Professional Plus 2010 for Office 365 runs two pieces of software to validate the install against their subscription. Searching for the Office Subscription Agent (osa.exe) and/or the Office Subscription Agent Notifier (osaui.exe) would be indicators that the desktop is using the Office 365 media.

Using a Desktop Management solution like SCCM 2007 R3 could pick up the existence of these executables on the desktop to inventory for Office Professional Plus 2010 for Office 365 in your environment.